J/A+A/565/A66ivo://CDS.VizieR/J/A+A/565/A66doi:10.26093/cds/vizier.35650066CDSDegli Esposti C.Dore L.Bizzocchi L.2014-11-09T15:16:21Z2014-05-13T07:46:46ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsImine compounds are thought to have a role in the interstellar formation of complex organic species, including pre-biotic molecules. Ketenimine (CH_2_CNH) is one of the four imines discovered in space. It was identified in Sgr B2(N-LMH) through the detection of three rotational lines in absorption. We present an extensive laboratory study of the ground-state rotational spectrum of CH_2_CNH at submillimetre wavelengths, aimed at obtaining accurate rest-frequencies for radio-astronomical searches. The investigation was carried out using a source-modulation microwave spectrometer equipped with a cell that is coupled to a pyrolysis apparatus working at 1000{deg}. The spectrum was recorded in the frequency range 80-620GHz with the detection of 150 transitions.2014A&A...565A..66Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/565/A66CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/565/A66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/565/A66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/565/A66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/565/A66https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/565/A66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/565/A66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/565/A66/table1Assignments, measured line positions, and least-squares residuals for the analysed transitions of keteniminerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ1[1/67] Upper state rotational quantum number Jphys.atmol.configurationintKa1[0/9] Upper state rotational quantum number Kaphys.atmol.qnintKc1[0/66]? Upper state rotational quantum number Kc (* unresolved asymmetry doublets)phys.atmol.qnintnullableF1[0/57]? Upper state 'total' quantum number Fphys.atmol.qnintnullableJ0[0/67] Lower state rotational quantum number Jphys.atmol.configurationintKa0[0/9] Lower state rotational quantum number Kaphys.atmol.qnintKc0[0/66]? Lower state rotational quantum number Kc (* unresolved asymmetry doublets)phys.atmol.qnintnullableF0[0/56]? Lower state 'total' quantum number Fphys.atmol.qnintnullableObsMeasured line position (MHz or cm-1)pos;spect.linedoubleO-CLest-squares residual (MHz or cm-1, see text)stat.fit.residualdoubleUncassumed uncertainty (MHz or cm-1)stat.errordoublex_ObsUnit for Obs, O-C and Unc (MHz or cm-1)meta.unitcharRef[1/3] Reference paper (1)meta.bibintJ/A+A/565/A66/table3Predicted rest frequencies, estimated accuracies, and lines strengths for the ground vibrational state of keteniminerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ1[1/14] Upper state rotational quantum number Jphys.atmol.configurationintKa1[0/3] Upper state rotational quantum number Kaphys.atmol.qnintKc1[0/14] Upper state rotational quantum number Kcphys.atmol.qnintF1[0/15]? Upper state 'total' quantum number Fphys.atmol.qnintnullableJ0[1/14] Lower state rotational quantum number Jphys.atmol.configurationintKa0[0/2] Lower state rotational quantum number Kaphys.atmol.qnintKc0[0/13] Lower state rotational quantum number Kcphys.atmol.qnintF0[0/14]? Lower state 'total' quantum number Fphys.atmol.qnintnullablefreq0Rest frequency (1)MHzem.freqdoublee_freq0Estimated 1{sigma} error of the predictionkHzstat.errorintLStrTransition strength (Debye^2^)D**2spect.line.strength;phys.atmol.transitiondoubleE1Upper state energycm**-1phys.energy;phys.atmol.levelfloatAEinstein's A coefficients**-1phys.atmol.transProbdouble